Assigbtob to bdwijst



R. F. SCOTT.

UNIVERSAL lOlNT. APPLICAUOH' melma. 20v me.

l' 1w @i l fwenorz- NEED STATE@ FATENT ROBERT F. SCOTT, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO ED'VVIN` HARRNGTON, SON 8c C0., INC., OF PHILADELPHIA, PENNSYLVANIA, A COB.-

PORATION 0F PENNSYLVANA.

UNVERSAL J (JINT.

Specification of 'Letters Patent.

Patented Ang. 22, *with Application led January 20, 1916. Serial No. 73,146.

phia, and State of Pennsylvania, have invented an lmproved Universal Joint, of which the following is a specification.

This invention is designed to provide a universal joint of simple and efiicient charaeter, which can be manufactured, assem-` bled and lubricated with facility.`

In its preferred `fnrm, my improvements are embodied in a pair of yokes provided with transverse bearings, a segmental body provided with trunnions disposed .in said bearings, means for clamping the segments of the body together. and means for oiling the frictional surfaces.

The nature and advantages of my improvements will be fully understood from the following description and the accompanying drawii-igs in illustration thereof.

Tn the drawings, Figure l is a` side elevatien -of a universal joint embodying my invention; Fig. 2 is a longitudinal sectional view of the saine; Fig. 3 is a sectional vieW taken on the line 3--3 of Fig. 2; Fig. 4 is a. sectional view taken on the line H of Fig. 2; Fig. 5 is an irregular sectional view taken on the line of Fig. 2, and showing a part broken away for better illustration; Fig, (3 is a longitudinal'sectional view of a joint embodying a inodied form of the invention; and Fig. 7 4is a sectional view taken on the-line 7-7 of'Fig.' 6.

ln the forni of the invention illustrated in Figs. ll to 5 inclusive. the yokes or bifureated knuckles l have inthe furcations l thereof Vthe journal bearings l".

nals, rings 3 which fit in the segmental channels 2d, and a rivet ft extending axially `through the body formed by the segments in contact with the surfaces 2, the rivet being provided with the flanges Il and 4J for pressing the rings to bind the body segments together and with the passages si. and ed for carrying a lubricant to the ducts 2 which deliver to the bearings. i

The segments with the trunnions thereon are alike in construction so that they can be used interchangeably, assembled readily and made with facility. being of such character that they can be drawn together in a firm body by the pressure of the rivet on the rings, whose inclined surfaces draw through the similarly inclined surfaces of the segments or segment channels.

In the forni of the invention illustrated i in Figs. (3 and 7. the yokes l are combined through their furcations l.a and the trunnions 2- with p the body segments 2 of the character and construction described, but the segments are here fixed together by two engaging studs and 6 provided with the wedge shaped flanges 5a and (ia which are engaged in the conforming channels 2 of the body. The stud 5 is provided with a male screw 5b which engages the female screw Gb of the stud 6, the studs being provided with the respective slots 5C and (3 for the engagement of a tool t0 draw them up. rllhe stud 5 contains an Oil duct 5d which communicates with a channel 7 by which lubricant is carried to the ducts 2f. It will bo nndorstoml that in this second form of the construction the parts of the body can be clamped together firmly on their planes of juncture axial to the studs by drawing up the latter.

Having described my invention, claim:

l. ln a universal joint, a body consisting wholly of segments joined on inclined surfaces, said segments having trnnnions iincd thereto, and means for clamping said segments together.

2. lin a universal joint, a body comprising segments lioined on inclined surfaces, said segments having inclined surfaces transverse to said surfaces first named, and means engaging said inclined surfaces second named to clamp said segments together on said inclined surfaces tiret named, in cambi- 'iria nation with forks and means for connectinginclined engaging surfaces,

'ing the channels lng said forks in movable relation vwith said body.

3. In a universal joint a pair of yokes having bearings in the turcations thereof,

' t body comprising segments rovided with .'pintles journaled in said earings, and means for clamping said segments together.

4. In a universal joint, a pair of yolzes having bearings in the furcations thereof,

a body comprising channeled segments hav-- them together, a device for ments and the'furcations of said yokcs.

i-gegments Atogether.

" having bearing a body comprising mons Journaled 1n sai 6. 'In a'universal joint, a pair of yokes the furcations thereof, se ments having trunbearings and faces adapted'for engaging the inner surfaces of sin ' said furcations, said segments and trunnions 'having passages for carrying a lubricant to said bearings, and means orclamping said holding said' means, and trunmons connecting said seg' intersect 7. .lin a. universal joint, a body comprising segments containing channels having inclined surfaces, rings having inclined surfaces engaging the inclined surfaces of said channels, and a rivet axially disposed with respect to said segments whereby said rings are clamped on said segments. y

- 8. A universal joint comprising a plurality of segments respectively provided with inclined bearing surfaces, an inclined bearing surface transverse to said surfaces rst named, a segmental curved surface transverse to saidsurfaces first named, and a trunnion disposed between the diverging extensions oi said inclined surface first named, and means engaging said inclined surface second named and said curved surface for binding' saidsegments together on said inclined surfaces first named. i

9. A universal joint comprising four similar body segments each provided with a trunnion and inclined hearing surfaces symmetrically disposed With reference to-said trunnion, and means for connecting said segments and drawing the corresponding bearing surfaces thereof together, in combination with forks connected with said trunnions.

in testimony whereof I have hereunto set my name this, 18th day of January, 1916.

ROBT. F. .SCT'D 

